One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,7)(4,6)(5,8)(9,10)(12,13)(14,15)(17,18,22,25)(19,26,29,23)(20,31,24,21)(27,28,32,30)(1,3,5,4)(2,6,8,7)(10,13)(11,15)(14,16)(17,19)(18,23)(20,32)(21,30)(22,29)(24,27)(25,26)(28,31)(1,3,5,4)(2,7,8,6)(9,11,13,15,12,16,10,14)(17,20,21,18,22,24,31,25)(19,27,30,26,29,32,28,23)(1,4,5,3)(2,7,8,6)(9,10,12,13)(11,14,16,15)(17,21,22,31)(18,24,25,20)(19,28,29,30)(23,32,26,27)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.